premaxilla

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premaxilla

 [pre-mak´sĭ-lah]
a separate element derived from the median nasal processes in the embryo, which later fuses with the maxilla.

pre·max·il·la

(prē'mak-sil'ă),
1. ☆ official atlternate term for incisive bone
2. The central isolated bony part in a complete bilateral cleft of the lip.
[pre- + L. maxilla, jawbone]

premaxilla

/pre·max·il·la/ (-mak-sil´ah)
2. the embryonic bone that later fuses with the maxilla to form the incisive bone.

premaxilla

(prē′măk-sĭl′ə)
n. pl. pre·maxillae (-măk-sĭl′ē)
Either of two bones located in front of and between the maxillary bones in the upper jaw of vertebrates.

pre·max′il·lar′y (-măk′sə-lĕr′ē) adj.

pre·max·il·la

(prē'mak-sil'ă)
1. Synonym(s): incisive bone.
2. Central isolated bony part in a complete bilateral cleft of the lip.
[pre- + L. maxilla, jawbone]

premaxilla (prē´maksil´ə),

n the embryonic structure that forms the anterior part of the maxillae.
premaxilla, floating,
n See premaxilla, loose.
premaxilla, loose,
n 1. (floating premaxilla) the nonunion of the premaxillary process with the lateral maxillary segments, so that the premaxilla is loose, or floating. The position of the loose premaxilla in relation to the lateral maxillary segments varies among patients.
n 2. the administration of a tranquilizing drug, a drug that influences blood clotting time or any other drug that produces a preplanned set of conditions and is administered preceding any dental procedures.

premaxilla

the incisive bone, the bone which bears the upper incisor teeth.

cleft premaxilla
see cleft lip.
References in periodicals archive ?
Length of upper jaw--The length of the premaxillae and maxillae to the point of articulation with the dorsal process of the dentary.
Characters studied without reference to region were distribution of denticles on the dorsal (DZ) and ventral (DVS) surfaces of the rostrum (both measured from the distal tip), length (P) from the distal tip of the rostrum to the distal extremity of the prenasal bone, presence or absence of denticles on the prenasal bone, and length from the tip along the ventral surface where the fused premaxillae divide (VSPM) into separate bones.
15) Shape of premaxilla: The premaxillae varied in their taper, measured as length over width at the caudal end of the external nares.
Fish vertebrae, dentaries, premaxillae and otoliths (in addition to small mammal bones) were also sorted from the [is less than] 4mm fraction, to assess fish size distributions and the relative abundance of small posterior caudal vertebrae which would be lost through larger screen sizes.
CBL, condylobasal length -- distance from anterior-most edge of premaxillae to posterior-most projection of occipital condyles.